Thought I would give it a shot, considering Purism staff have pgp signatures on their blog posts, I thought if one company would support it they might haha.
Though considiring that even with “privacy” email services even when they “zero-access encrypt” the emails, the subjects are not encrypted (I think as is the case with proton mail). Maybe they might want to consider allowing people to encrypt subject lines or put encrypted info in the body of the message (with a tag in the subject line to indicate as such). Admittedly 99.9% of people (likely including myself) its not necessary if the order number doesn’t make sense to anyone but you and Purism (assuming its linked to other records like name and address that stay at Purism).
Good to know, thank you